CHEMISTRY HIGH SCHOOL

Which is defined as moles of solute per liter of solution?a. Molarity
b. Formality
c. Density
d. Molality
e. Normality

Answers

Answer 1
Answer: A. Molarity . Explaining about Moles 
Answer 2
Answer: The answer is A. Molarity

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Exactly 1/16 of a given amount of protactinium-234 remains after 26.76 hours. What is the half life of protactinium-234?

Answers

This is a problem involving half-lives. We can solve this problem by using the equation as shown: A=Aoe^-(ln2/t)T where A is the final amount (1gram *assumed), Ao is the initial amount (16g *assumed), t is the half-life *required) and lastly T time elapsed (26.76h). Plug in the values in the equation and you should get  6.69 hours. 

Standard 1.11
The blue and red parts of the atoms represent the?

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The number of protons in the nucleus for that element

This element has a complete outermost energy level and is found in the 4th period.

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Krypton Krypton has 8 electrons in the outermost energy level. Tip:All elements excluding the Lanthinides and Aninides are in order by molecular structure, kind of. The last column will have a full outermost energy level

What is the total number of moles of oxygen atoms present in 1 mole of mg(c1o3)2

Answers

Answer: There are 6 mole of oxygen present in 1 mole of Mg(ClO_(3))_(2).

Explanation:

The given formula of compound is Mg(ClO_(3))_(2). In this compound, there are 1 mole of magnesium, 2 mole of chlorine and 3 * 2 = 6 mole of oxygen atom.

Therefore, we can conclude that the total number of moles of oxygen atoms present in 1 mole of Mg(ClO_(3))_(2) is 6 mole.
3.)What is the total number of moles of oxygen atoms present in one mole of Mg(ClO3)2? 5,2,3,or 6? 

Thats the question right? the answer is 6

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Answer:

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Answers

Electrons move from higher energy states to lower energy states Hope this helped
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